“It was a big melee,” according to Costa Mesa police Sgt. Bang Le, who said at least five police vehicles were vandalized. Police said one man was hurt during an
altercation on the fairgrounds property. Paramedics took him to a
hospital for treatment of a head injury that didn’t appear to be
life-threatening,
according to authorities.At one point,a Costa
Mesa officer was hit on the head by a rock thrown by a protester, but
police said he was unhurt, thanks to the riot gear and helmet he was
wearing.

At one point, a group of
young men and women started rocking and jumping onto a car near Fairview
Road and Fair Drive, an intersection that was eventually shut down. The
driver got out and screamed at the group thata child was onboard.

The
Costa Mesa Police Department said officers arrested 17 people, all on
suspicion of failing to disperse. By Friday morning, each arrestee had
been released with a written promise to appear in court, Le said.

The crowd dispersed by 11 p.m., about four hours after Trump's rally began, the Sheriff's Department said.

Erik Taylor, executive
director of theDemocratic Party of Orange County,said Friday that the
party “does not condone the violence that took place at the O.C.
fairgrounds last night, but we do thank the Democratic Party activists
who did come out and protest in a peaceful way.” “Obviously things got out of hand,” he added...